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WorksheetsMTR Chapter 06: Principles of Microbiology
Total questions: 65
Worksheet time: 33mins
Name
Class
Date
1.
Robert Hooke is known for:
a)
observing algae growth.
b)
observing fungal growth.
c)
growing protozoa.
d)
growing bacteria.
2.
Which of the following scientists created a microscope?
a)
Ferdinand J. Cohn
b)
Louis Pasteur
c)
Anton van Leeuwenhoek
d)
Robert Koch
3.
Robert Koch was able to prove the germ theory by colonizing the bacteria that caused:
a)
gas gangrene.
b)
tetanus.
c)
anthrax.
d)
botulism.
4.
Which of the following viruses is recently labeled extensively drug-resistant?
a)
MDR-TB
b)
COVID-19
c)
XDR-TB
d)
Ebola
5.
One of the protective measures for the surgical team that should be implemented when working with sharps on a patient with a contagious disease is to:
a)
create a distinct sharp zone on the back table.
b)
recap hypodermic needles.
c)
use a sharp container with magnetic strip.
d)
use a neutral zone.
6.
The relationship between human host and indigenous microflora is called:
a)
mutualism.
b)
symbiosis.
c)
mensalism.
d)
parasitism.
7.
E. coli that colonizes withing human intestine is an example of:
a)
neutralism.
b)
mutualism.
c)
antagonism.
d)
parasitism.
8.
An optical microscope uses:
a)
natural light.
b)
reflecting light.
c)
light source and compounding medium.
d)
high powered beam.
9.
The microscope that provides detailed, three-dimensional images of the specimen by reflecting light off the surface of the specimen is the:
a)
stereo microscope.
b)
compound light microscope.
c)
SEM.
d)
TEM.
10.
The part of the microscope that allows the viewer to select an objective lenses power is the:
a)
diopter adjustment.
b)
objective lens.
c)
eyepiece.
d)
illuminator.
11.
Stage controls:
a)
adjust the location or height of the stage.
b)
secure the slide in place.
c)
adjust the opening in the stage.
d)
connect the base to the head.
12.
Which of the following staining methods is used to determine the basic shape and structures of the cell and is applied with a single dye?
a)
differential staining
b)
Gram staining
c)
acid-fast staining
d)
simple staining
13.
What color do Gram-positive bacteria retain after Gram staining?
a)
purple
b)
red
c)
blue
d)
no color changes
14.
Which of the following staining methods is specifically used to identify bacteria such as M. tuberculosis?
a)
acid-fast staining
b)
Gram staining
c)
simple staining
d)
differential staining
15.
The purpose of counterstaining in acid-fast staining is to:
a)
remove excess stain.
b)
identify endospores.
c)
differentiate between Gram-positive and Gram-negative bacteria.
d)
provide contrast and visualize non-acid cells.
16.
The sample for a culture and sensitivity test is usually collected in:
a)
a test tube.
b)
a petri dish.
c)
a microscope slide.
d)
a culture medium.
17.
The primary goal of the first step in a culture and sensitivity test is to:
a)
test the organisms' sensitivity to antibiotics.
b)
identify the antibiotic resistance of the organism.
c)
allow the microorganisms to colonize and grow.
d)
transport the sample to the lab.
18.
If the organism is sensitive to an antibiotic, it means that:
a)
it is resistant to treatment with that antibiotic.
b)
it is susceptible to treatment with that antibiotic.
c)
it is a multi-drug resistant strain.
d)
it cannot be identified using staining methods.
19.
Which of the following types of culture media consists of more than one nutrient with unknown composition?
a)
anaerobic
b)
complex
c)
defined
d)
differential
20.
Which of the following methods allows for periodical transfer of the organism to a fresh culture medium to maintain its viability?
a)
subculturing
b)
cryopreservation
c)
complex
d)
selective
21.
What does the term nomenclature mean?
a)
organizing living organisms into taxonomic categories
b)
classifying organisms based on their characteristics
c)
naming living organisms
d)
describing the habitant of living organisms
22.
The main category of a plant or animal in the Linnean classification system is:
a)
kingdom
b)
genus
c)
family
d)
species
23.
Which of the following domains in Carl Woese’s system includes single-celled eukaryotic organism such as fungi, plants, and animals?
a)
archaea
b)
bacteria
c)
genus
d)
eukarya
24.
The primary function of the nucleus in eukaryotic cells is:
a)
protein synthesis.
b)
genetic control.
c)
energy production.
d)
carbohydrate synthesis.
25.
The genetic material in prokaryotic cells is located in the:
a)
nucleoid.
b)
mitochondria.
c)
nucleus.
d)
endoplasmic reticulum.
26.
Which of the following molecules is typically used as a source of energy in active transport?
a)
glucose
b)
water
c)
adenosine triphosphate (ATP)
d)
oxygen
27.
Which of the following fuctions is an example of passive transport?
a)
endocytosis
b)
exocytosis
c)
diffusion
d)
phagocytosis
28.
Filtration is the:
a)
movement of a substance against gravity.
b)
movement of a substance with the expenditure of energy.
c)
random movement of substances until evenly distributed.
d)
movement of small substances through a filter membrane.
29.
Which of the following organisms is NOT a common infection pathogen in the healthcare setting?
a)
algae
b)
bacteria
c)
viruses
d)
protozoa
30.
In healthcare, the acronym HAI stands for:
a)
highly acquired infection.
b)
hospital-acquired infection.
c)
host-affected infection.
d)
healthcare-associated infection.
31.
Which of the following choices is NOT a common type of HAI?
a)
UTI
b)
SSI
c)
skin infection
d)
gastrointestinal infection
32.
The most transmitted pathogen in the surgical environment is:
a)
Escherichia coli.
b)
Staphylococcus aureus.
c)
Streptococcus pneumoniae.
d)
Mycobacterium tuberculosis.
33.
The primary goal of the surgical team member's effort to prevent SSIs is to:
a)
maximize patient's comfort.
b)
provide the best surgical outcome.
c)
be vigilant with sterile technique.
d)
minimize surgical cost.
34.
Which of the following terms refers to round-shaped bacteria?
a)
bacilli
b)
cocci
c)
streptococci
d)
coccobacilli
35.
DNA is unique to each bacteria species because:
a)
it has specific color.
b)
it has specific shape.
c)
it has a unique DNA sequence.
d)
it has a unique RNA sequence.
36.
Which of the following bacteria is known for causing postoperative surgical site infections and resistant to methicillin?
a)
S. aureus
b)
S. epidermis
c)
streptococcus
d)
Clostridium difficile
37.
Mycology is the study of:
a)
bacteria.
b)
viruses.
c)
fungi.
d)
parasites.
38.
Vaginal yeast infection is caused by:
a)
Histoplasma capsulatum.
b)
Candida albicans.
c)
Blastomyces dermatitidis.
d)
Pneumocystis jirovecii.
39.
Which of the following diseases in humans is characterized by dementia and myoclonus and is associated with prion infections?
a)
tuberculosis
b)
mad cow disease
c)
Creutzfeldt-Jakob Disease (CJD)
d)
Alzheimer's disease
40.
Viruses replicate by:
a)
dividing like bacteria.
b)
undergoing meiosis.
c)
using the host cell to replicate its own genetic material.
d)
exchanging genetic material with other viruses.
41.
Which of the following stages of the infectious process is characterized by the most severe signs and symptoms of the disease?
a)
incubation
b)
prodromal
c)
illness
d)
decline
42.
The the point at which a microbe enters the human body is the:
a)
portal of exit.
b)
portal of entry.
c)
portal of transmission.
d)
portal of infection.
43.
Which of the following terms is used for the first line of defense against pathogens that consists of natural barriers such as intact skin and mucus?
a)
artificial immunity
b)
acquired immunity
c)
passive immunity
d)
innate immunity
44.
According to the CDC, the primary focus of Standard Precautions is to:
a)
prevent transmission of a disease.
b)
isolate a patient with infectious disease.
c)
minimize PPE.
d)
promote basic hand hygiene.
45.
Which of the following practices is NOT a recommended Standard Precaution for healthcare workers?
a)
frequent hand hygiene
b)
use of appropriate PPE
c)
safe sharps handling
d)
sharing PPE with colleagues
46.
Algae produce a cyanotoxin and can be harmful to humans.
a)
"True"
b)
"False"
47.
Guideline IV for Use of Eye Protection During Surgical Procedures suggests that used goggles should be discarded in regular waste bins.
a)
"True"
b)
"False"
48.
According to Guideline I for Laundering of Scrub Attire, scrub attire should be laundered in a home washing machine to reduce the risk of cross-contamination.
a)
"True"
b)
"False"
49.
Public health initiatives are safe practices that are established and enforced to protect the health of the citizens by preventing the spread of infectious diseases.
a)
"True"
b)
"False"
50.
The mask must be always worn in restricted areas, including the substerile rooms and scrub sinks.
a)
"True"
b)
"False"
51.
The previous patient must have been diagnosed with the disease associated with a prion called:
a)
HIV.
b)
Creutzfeldt-Jakob disease.
c)
hepatitis B.
d)
hepatitis C.
52.
Bacilli are generally spherically shaped bacteria.
a)
"True"
b)
"False"
53.
The bacterial Clostridium perfringens is related to poor circulation and can lead to amputation for the patient. This infection is called:
a)
gas gangrene.
b)
staphylococcus.
c)
salmonella.
d)
C. difficile.
54.
All of the following risk factors increase the chance of post-operative surgical site infections except:
a)
preexisting illness.
b)
obesity.
c)
early ambulation.
d)
age.
55.
The multiplication of organisms in the tissues of a host is called:
a)
an antibiotic.
b)
mark for needs.
c)
aseptic.
d)
an infection.
56.
Escherichia coli resides within the lumen of the intestines in humans.
a)
"True"
b)
"False"
57.
The pathogen transmitted through airborne droplets and that requires a healthcare worker to wear an N-95 respirator as prevention is:
a)
mycobacterium tuberculosis.
b)
gas gangrene.
c)
c. difficile.
d)
streptococcus.
58.
Escherichia coli which reside inside the human intestines are an example of:
a)
neutralism.
b)
mutualism.
c)
parasitism.
d)
commensalism.
59.
The bacterial pathogen commonly associated with post operative wound infection is:
a)
Salmonella enterica.
b)
Neisseria meningitides.
c)
Staphylococcus aureus.
d)
Streptococcus pneumoniae.
60.
Microorganisms cannot be viewed with just the human eye.
a)
"True"
b)
"False"
61.
A virus does not rely on the host for survival.
a)
"True"
b)
"False"
62.
Most surgical site infections are caused by microorganisms from the surgical team.
a)
"True"
b)
"False"
63.
The pathogen that is associated with symptoms of diarrhea and is life threatening in children is:
a)
C. perfringens.
b)
Streptococcus pyogenes.
c)
C. difficile.
d)
Staphylococcus aureus.
64.
Bacteria that require an oxygen level that is lower than that of normal air but still require oxygen are called:
a)
microaerophilic.
b)
aerobic.
c)
thermophilic.
d)
anaerobic.
65.
Cocci are generally rod-shaped bacteria.
a)
"True"
b)
"False"
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